dont know of anything like this but what you can often do sometimes is to target this specificity of a particular div, for instance if you have a div which is included in a < p > which is included in a < table > < tr > and < td > but the div has no class or id then you can still target it by using

table tr td p div{
}

and it will often affect that and only that div .... it's not foolproof but it works a lot of the time .... you often need to use !important though and sometimes you need to go back very far along the page even back as far as the html and body sometimes
sometimes pseudo like firstchild help too